Johnson, W. C. C. (1997). Total quality in marketing.
Chicago Style aipamenaJohnson, William C; Chvala. Total Quality in Marketing. Vanity Books International: New Delhi, 1997.
MLA aipamenaJohnson, William C; Chvala. Total Quality in Marketing. 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.